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arXiv · 2311.13376

Thermal Pair Production from Photon-Photon Collision: Breit-Wheeler Process at Finite Temperature

D. S. Cabral·A. F. Santos·R. Bufalo
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Abstract

In this paper we examine the pair production through the Breit-Wheeler process $\gamma~\gamma \to e^+ e^-$ in a thermal background. We compute the thermal contribution to the Breit-Wheeler differential cross section within the thermofield dynamics formalism. We evaluate in details the cross section for this process, which possess a surprisingly simple expression valid for any temperature $\beta$, from which we discuss some physically relevant aspects. We also consider the high temperature regime of the cross section in order to have a better understanding about its thermal behavior.

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D. S. Cabral, A. F. Santos, R. Bufalo. 2023-11-22. Thermal Pair Production from Photon-Photon Collision: Breit-Wheeler Process at Finite Temperature. https://arxiv.org/abs/2311.13376

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